"Sat, 14 Sep 2024 18:17:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240914
Only TIME
18:17:21
General datetime
2024-09-14 18:17:21Z
For Database
2024-09-14 18:17:21
For HTTP1.1
Sat, 14 Sep 2024 18:17:21 GMT